Re: MOV's

• To: tesla-at-pupman-dot-com
• Subject: Re: MOV's
• From: "Marco Denicolai" <Marco.Denicolai-at-tellabs.fi> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Thu, 24 Feb 2000 08:25:09 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List <tesla-at-pupman-dot-com> on 24.02.2000 01:46:45

To:   tesla-at-pupman-dot-com
cc:    (bcc: Marco Denicolai/MARTIS)
Subject:  Re: MOV's



Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Wednesday, February 23, 2000 6:59 AM
Subject: MOV's


>>Original Poster: "Christopher Boden" <chrisboden-at-hotmail-dot-com>
>>
>>As I understand it a MOV (Metal Oxide Varistor) is basically a whomping
>>Zeneer Diode in essance. It does nothing untill you reach a prescribed
>>voltage, then acts as a short circuit. A hogh voltage gate essentially. Am
>I
>>wrong?

>Yes, basically, although MOV's have a distinct life characteristic (every
>hit reduces the remaining capacity,until they fail)...  Don't forget that
>while they conduct, they dissipate a fair amount of power (That is, say
>you've got a 440 V MOV and your spike is 1 amp... that's 440W it's
>dissipating..)  It used to be Harris that was a big mfr of these and their
>web site had a lot of info, but they've changed names, and I don't recall
>who does the MOV's now.


That should be Intersil.

Regards

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